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CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis
Chen, Yi-ping1; Liu, Qiang1,2; Chen, Dong1
2016-10-01
发表期刊CANADIAN JOURNAL OF PLANT SCIENCE
卷号96期号:5页码:796-807
文章类型Article
摘要To investigate the mechanism by which laser irradiation enhances the chilling tolerance of wheat seedlings, seeds were exposed to different treatments, and biochemical parameters were measured. Compared with the control group, chilling stress (CS) led to an increase in the concentrations of malondialdehyde (MDA) and H2O2, and decreases in the activities of superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione reductase (GR), catalase (CAT), peroxidase (POD), and nitric oxide synthase (NOS), and the concentrations of nitric oxide (NO) and protein. Treatment with 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (PTIO), sodium tungstate (ST), and NG-nitro-L-arginine methyl ester (L-NAME) followed by CS resulted in further increases in the concentrations of MDA and H2O2 and further decreases in the other parameters. However, treatment with PTIO, ST, and L-NAME followed by laser irradiation had the opposite effects on these parameters. When the seeds were treated with PTIO, ST, and L-NAME followed by laser and CS, the concentrations of MDA and H2O2 were significantly lower and the other parameters were higher than in the PTIO, ST, and L-NAME plus CS groups. These results suggest that CO2 laser irradiation enhances the chilling tolerance of wheat seedlings by stimulating endogenous NO synthesis.
关键词Triticum Aestivum Co2 Laser Chilling Stress No Signal Reactive Oxygen Species Stress Tolerance
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1139/cjps-2015-0385
关键词[WOS]NITRIC-OXIDE ; GLUTATHIONE-REDUCTASE ; SUPEROXIDE-DISMUTASE ; LASER IRRADIATION ; UV-B ; STRESS ; PEROXIDASE ; RESPONSES ; GROWTH ; PLANTS
收录类别SCI
语种英语
WOS研究方向Agriculture ; Plant Sciences
WOS类目Agronomy ; Plant Sciences
WOS记录号WOS:000386571000011
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文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5651
专题生态环境研究室
作者单位1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China
2.State Ocean Adm, Inst Oceanog 2, Key Lab Marine Ecosyst & Biogeochem, Hangzhou 310012, Zhejiang, Peoples R China
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Chen, Yi-ping,Liu, Qiang,Chen, Dong. CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis[J]. CANADIAN JOURNAL OF PLANT SCIENCE,2016,96(5):796-807.
APA Chen, Yi-ping,Liu, Qiang,&Chen, Dong.(2016).CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis.CANADIAN JOURNAL OF PLANT SCIENCE,96(5),796-807.
MLA Chen, Yi-ping,et al."CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis".CANADIAN JOURNAL OF PLANT SCIENCE 96.5(2016):796-807.
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